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145144659 = 3117360251
BaseRepresentation
bin10001010011010…
…11101101010011
3101010010010001010
420221223231103
5244124112114
622222542003
73411465162
oct1051535523
9333103033
10145144659
1174a26370
1240737903
13240bbc1a
14153c33d9
15cb20c59
hex8a6bb53

145144659 has 16 divisors (see below), whose sum is σ = 214015104. Its totient is φ = 86760000.

The previous prime is 145144639. The next prime is 145144663. The reversal of 145144659 is 956441541.

It is not a de Polignac number, because 145144659 - 220 = 144096083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145144609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27717 + ... + 32534.

It is an arithmetic number, because the mean of its divisors is an integer number (13375944).

Almost surely, 2145144659 is an apocalyptic number.

145144659 is a deficient number, since it is larger than the sum of its proper divisors (68870445).

145144659 is a wasteful number, since it uses less digits than its factorization.

145144659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60338.

The product of its digits is 86400, while the sum is 39.

The square root of 145144659 is about 12047.5997194462. The cubic root of 145144659 is about 525.5334369453.

The spelling of 145144659 in words is "one hundred forty-five million, one hundred forty-four thousand, six hundred fifty-nine".

Divisors: 1 3 11 33 73 219 803 2409 60251 180753 662761 1988283 4398323 13194969 48381553 145144659